Motor for ships&#39; logs



Feb. 10. 1925 ,525,724

S. M, DAVISON MOTOR `Foa SHIPS Loes Filed Feb. 5, 1921 2 ShGSvI-She'ei 1M. AWSQM MOTOR FOR SHIPS LOGS Feb. m, 192.5..

Filed Feb. 5, 1921 2 Sheets-Sheet 2 calibrated according to thepeculiarities of the ship itself, or the particular instrument, I haveshown at I-I a throttle having a threaded end h which passes through asuitable neck H1 in the side of the casing and when once properlyadjusted may be held in place by a screw h1. It will be seen from Figs.l and 2 that this plug in cross section completely fills and closes somuch of the intake as is desired; that is, its diameter is equal to thewidth of the portion of the nozzle into which it projects so that itwill close tightly by lateral contact of nozzle, and as will be seenfrom Fig. 1l, it may be screwed into or out of the nozzle as far as maybe desired. This adjustment, however, is only to be used when theapparatus is first installed.

I have also shown at J an oil cup from which a wick j passes up througha suitable opening to lubricate the shaft E2. Other means of lubricationmay be used as desired. The various gears and other moving parts shouldbe lubricated in some suitable manner such as may occur to the user. Thewheel or rotor E is so designed and is made of material such as to offera minimum amount of resistance to its passage through the water. Ifthought best it may be weighted at the rim so that it will have afly-wheel action.

As shown, the bearings are packed to prevent leakage from the casing.

In practice the log is so supported that the intake and dischargeopenings are about l5 inches below the vessel in which the log ismounted, the intake opening facing the bow and the discharge the sternthereof. A grating may be used if desired, as shown, to keep solidmatter from the intake pipe.

Ihat I claim as my invention is zl. In a device of the kind described, acasing forming a chamber having an outlet, a rotor mounted to rotate insaid chamber, and means comprising a pipe having an open intake at itslower end and a nozzle at its upper end located to deliver water fromsaid pipe against the under side of the periphery of said rotor, saidcasing having an opening in its bottom through which said pipe passesinto the chamber in said casing and the water from said chamber passesaway.

2, In a device of the kind described, a casing containing a chamberhaving an outlet, a rotor mounted to rotate in said chamber, and meanscomprising a pipe having an intake at its lower end and a nozzle at itsupper end located to deliver water from said pipe against the peripheryof said rotor,`said casing having an opening in its bottom through whichsaid pipe passes into the chamber within said casing, and a dischargepipe closing said opening and surrounding said first-named pipe.

S. In a device of the kind described, a casing forming a chamber havingan outlet, a rotor mounted on a horizontal shaft to rotate in saidchamber, and means comprising a pipe having an open intake at its lowerend and a nozzle at its upper end located to deliver water from saidpipe against the under side of the periphery of said rotor whereby itsmovement through the water will cause water to rise therein and beforced from said nozzle.

4. In a device of the kind described, a casing forming a chamber havingan outlet, a rotor having buckets mounted to rotate in said chamber, andmeans comprising a pipe having an open intake at its lower end and anozzle at its upper end located to deliver water from said pipe againstthe under side of periphery of said rotor, the edge of said nozzlehaving an elongated discharge shaped to conform to the periphery of saidrotor, and extended to deliver water to a plurality of buckets the widthof said nozzle being narrower than the thickness of said rotor and alsothan the diameter of said pipe whereby the rapid movement of the devicethrough the water will cause water to rise therein and be forced outfrom said pipe with a maximum of force depending upon the speed of saidmovement.

5. A device of the kind described comprising a casing forming a chamber,a rotor mounted to rotate in said chamber, a delivery pipe having anozzle located to deliver water against the under side of said rotor anda drainage pipe surrounding said delivery pipe and connected at itsupper end to said 'casing to drain the said chamber, its lower end beingclosed, said drainage pipe having openings in its opposite sides aboveits lower end one of said openings being connected to said delivery pipewhereby it may serve as an intake therefor and the other opening servingas an outlet for said drainage pipe whereby the contents of said chambermay be drained.

6. In a device of the kind described, a casing forming a chamber havingan outlet, a rotor mounted to rotate in said chainber and meanscomprising a delivery pipe having a nozzle at its upper end located todeliver water against the periphery of said rotor, said outletcomprising a pipe connected to said chamber and having a plug located toclose its eXtreme lower end, said outlet pipe having openings onopposite sides above its extreme lower end and said plug having apassage therethrough connecting one of said openings with said deliverypipe whereby water may be taken into said delivery pipe, said plug beingshaped with relation to the interior wall of said outlet pipe to allowwater draining from said casing to pass out through the other opening insaid drainage pipe Whereby tvvo separate channels Will be maintained insaid outlet pipe, one channel adapted to receive and deliver' Water tosaid nozzle and the other to drain said casing.

7. In a device of the kind described, a casing forming a chamber havingan out let, a rotor mounted to rotate in said chamber, and meanscomprising a pipe having an intake at its lower end and a nozzle at itsupper end located to deliver Water from said pipe against the under sideof the periphery of said rotor, said nozzle being narrower than thediameter of said pipe and a throttle plug having a threaded extension ofless diameter than said plug located in said nozzle, said plug and itsextension heing supported by the opposing Walls thereoi and alsoengaging the sides of said nozzle whereby the size oi the streamdelivered against the rotor may be adjusted.

8. In a log, a casing forming a chamber having an outlet in its lowerportion, a rotor mounted in said chamber and having buckets about itsperiphery and means for rotating said rotor comprising a pipe closed atthe bottom and having an opening in one side thereof near its loiver endadapted to receive Water, and a nozzle at its upper end narrower thanthe thickness of the rotor and Vlocated to deliver Water against theunder side of the periphery of said rotor the periphery of the rotorbeing shaped whereby the Water on striking it Will fall off therefrom ina lateral direction without interfering with the incoming stream fromthe nozzle.

SIDNEY M. DAVISON.

